Electronic device including sound broadcasting element

ABSTRACT

An electronic device including a protection layer, a display panel, and a sound broadcasting element is provided. The protection layer has an inner surface and a side surface directly connected to the inner surface. The display panel is disposed on the inner surface of the protection layer and has a back surface and a side surface directly connected to the back surface. The sound broadcasting element is located adjacent to the side surface of the display panel, and the sound broadcasting element includes a piezoelectric component and a connection component.

CROSS-REFERENCE TO RELATED APPLICATION

This Application is a Divisional Application of and claims the prioritybenefit of U.S. application Ser. No. 17/349,928, filed on Jun. 17, 2021.The prior U.S. application Ser. No. 17/349,928 is a DivisionalApplication of and claims the priority benefit of U.S. application Ser.No. 16/726,951, filed on Dec. 26, 2019. The prior U.S. application Ser.No. 16/726,951 claims the priority benefits of U.S. provisionalapplication Ser. No. 62/794,806, filed on Jan. 21, 2019, and Chinaapplication serial no. 201910857150.7, filed on Sep. 11, 2019. Theentirety of each of the above-mentioned patent applications is herebyincorporated by reference herein and made a part of this specification.

BACKGROUND Technical Field

The disclosure relates to an electronic device, and more particularly toa display device.

Description of Related Art

Electronic products have become indispensable in modern society. Withthe rapid development of such electronic products, consumers have highexpectations for the quality, functions, or prices of these products.However, these electronic products still have not satisfied the needs inall aspects. Some of the electronic products are characterized bycommunication capabilities or display functions, but the configurationand the design of related elements (such as speakers) are still one ofthe topics for developers.

SUMMARY

The disclosure provides an electronic device featuring an improvedscreen-to-body ratio or full-screen display.

According to an embodiment of the disclosure, an electronic deviceincludes a protection layer, a display panel, and a sound broadcastingelement. The protection layer has an inner surface and a side surfacedirectly connected to the inner surface. The display panel is disposedon the inner surface of the protection layer and has a back surface anda side surface directly connected to the back surface. The soundbroadcasting element is located adjacent to the side surface of thedisplay panel, and the sound broadcasting element includes apiezoelectric component and a connection component.

In order to make the above features and advantages of the disclosuremore obvious, the following embodiment is described in detail withreference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide a furtherunderstanding of the disclosure, and are incorporated in and constitutea part of this specification. The drawings illustrate embodiments of thedisclosure and, together with the description, serve to explain theprinciples described herein.

FIG. 1 is a schematic top view of an electronic device according to anembodiment of the disclosure.

FIG. 2 is a schematic cross-sectional view taken along a sectional lineI-I′ in FIG. 1 .

FIG. 3 is a schematic cross-sectional view taken along a sectional lineII-II′ in FIG. 1 .

FIG. 4A to FIG. 4C are schematic top views of various sound broadcastingelements applicable to the electronic device provided herein.

FIG. 5 to FIG. 12 are schematic cross-sectional views of electronicdevices according to several embodiments of the disclosure.

DESCRIPTION OF THE EMBODIMENTS

The disclosure can be understood with reference to the followingexemplary embodiments and the accompanying drawings. For easyunderstanding and simplicity of drawings, some of the drawings in thedisclosure depict only a portion of the electronic device/the displaydevice, and specific components in the drawings are not drawn accordingto actual scales.

In the drawings, common characteristics of the methods, structuresand/or materials used in specific exemplary embodiments are shown.However, the drawings are not limited to the structures or features ofthe following embodiments and the drawings should not be interpreted todefine or limit the scopes or the properties of the descriptions in theexemplary embodiments. For instance, the relative dimension, thickness,and location of each film layer, region, and/or structure may be reducedor enlarged for clarity.

Certain terms are used throughout the description and the claims torefer to particular elements. People skilled in the pertinent art shallappreciate that electronic device manufacturers may use different namesto denote the same element. The disclosure does not aim atdistinguishing the elements with the same function but different names.

In the description and claims, the words “having,” “including,” and“comprising” are open-ended and therefore should be interpreted as“including but not limited to”. Moreover, “first”, “second”, etc.mentioned in the specification and the claims are merely used to namethe discrete elements or to differentiate different ranges orembodiments and therefore should not be regarded as limiting the upperor lower bound of the number of the components/devices and should not beused to limit the manufacturing sequence of components.

The directional terminologies mentioned in the detailed description,such as “top,” “bottom,” “front,” “back,” “left,” or “right”, etc., areused as a reference to the orientation of the drawings being described.Accordingly, the drawings and descriptions will be regarded as beingillustrative in nature but not as being restrictive.

It should be understood that when an element or a film layer is referredto as being disposed “on” another element or another film layer or“connecting/bonding” another element or another film layer, the elementor the film layer may be directly located on the other element or filmlayer or directly connected/bonded to the other element or film layer,or there may be an intervening element or film layer between the twoelements (indirect connection/bonding). By contrast, when the element orthe film layer is referred to as being “directly on” or “directlyconnected/bonded” to another element or another film layer, there is nointervening element nor film layer between the two elements. Inaddition, connecting or bonding two elements to each other may indicateboth elements are fixed or at least one of the elements is movable.

The terms “about,” “approximately,” “substantially,” “equal to,”“equal,” or “identical” used herein are generally meant to fall within arange of 20%, 10%, 5%, 3%, 2%, 1%, or 0.5% of a given value or range.

In the following embodiments, the same or similar elements will be giventhe same or similar reference numerals, and the description thereof willbe omitted. In addition, the features provided in different embodimentsmay be arbitrarily combined and applied without departing from thespirit of the disclosure, and the simple equivalent changes andmodifications made in the descriptions or claims are still within thescope of the disclosure.

According to one or more embodiments of the disclosure, the electronicdevices provided herein may include but should not be limited to anantenna device, a display device, a sensing device, a light-emittingdevice, a tiled device, other suitable devices, or a combinationthereof. The electronic device can be a bendable or flexible electronicdevice. The antenna device may include but is not limited to, forinstance, a liquid crystal antenna. The tiled device may include but isnot limited to, for instance, an antenna tiled device. It should beunderstood that the electronic device may include but is not limited toany combination of the foregoing devices.

In the following embodiments, the electronic device will be exemplifiedby a display device, but the disclosure is not limited thereto. When theelectronic device is the display device, the display device can be butis not limited to a bendable display device, a flexible display device,a touch display device, a curvature display device, or a tiled displaydevice. In addition, the display device can be applied to a television(TV), a notebook computer, a tablet PC, a mobile phone, a monitor, anautomobile display, or any other electronic device that requires thedisplay function.

FIG. 1 is a schematic top view of an electronic device according to anembodiment of the disclosure. FIG. 2 is a schematic cross-sectional viewtaken along a sectional line I-I′ in FIG. 1 . With reference to FIG. 1and FIG. 2 , an electronic device 1 comprises a display panel 10, aprotection layer 11, and a sound broadcasting element 12. In someembodiments, the display panel 10 can be replaced by other electroniccomponents, circuit boards, substrates having electronic devices, or acombination of the above, which should however not be construed as alimitation in the disclosure.

The display panel 10 can provide a display image. For instance, thedisplay panel 10 can include but should not be limited to liquid crystal(LC), an organic light-emitting diode (OLED), quantum dots (QD), afluorescence material, a phosphor material, a light-emitting diode(LED), e.g., a micro light-emitting diode or mini light-emitting diode,a quantum dot light-emitting diode (QDLED, QLED), other materials, or acombination of the above.

In an embodiment, the electronic device 1 may further comprise abacklight module (not shown), and the display panel 10 may be disposedbetween the protection layer and the backlight module. The backlightmodule may include a light source. The light source may include the LED,the OLED, the mini LED, the micro LED, or the quantum dot LED (QLED,QDLED), however the types of the light source as mentioned above are notbe construed as a limitation in the disclosure.

The protection layer 11 can be disposed on the display panel 10 and mayprotect the display panel 10. For instance, a material of the protectionlayer 11 may include glass, a polymer, an insulation material, othersuitable materials, or a combination of at least two of the above. In anembodiment, the protection layer 11 and the display panel 10 may havethe same or different thicknesses.

The sound broadcasting element 12 and the display panel 10 may bepositioned below the protection layer 11, and the sound broadcastingelement 12 may contact the protection layer 11. As shown in FIG. 1 , thedisplay panel 10 and the sound broadcasting element 12 may contact aninner surface S11 of the protection layer 11. In addition, at least oneportion of the sound broadcasting element 12 may be located on a side ofthe display panel 10, and an air gap G may exist between the soundbroadcasting element 12 and the display panel 10. In other words, thesound broadcasting element 12 may be spaced from the display panel 10,just like there exists a gap between the sound broadcasting element 12and the display panel 10. The relative configuration relationshipbetween the display panel 10 and the sound broadcasting element 12 maybe changed as needed, the relative configuration relationship should notbe construed as a limitation in the disclosure.

In an embodiment, as shown in FIG. 2 , the sound broadcasting element 12may include a piezoelectric component 120 and a connection component121. The connection component 121 may be connected between thepiezoelectric component 120 and the protection layer 11. In anembodiment, as shown in FIG. 2 , the connection component 121 may belocated on a side of the display panel 10, and the air gap G may existbetween the connection component 121 and the side of the display panel10. The display panel 10 may be located between the piezoelectriccomponent 120 and the protection layer 11. Besides, the piezoelectriccomponent 120 and the display panel 10 may be partially overlapped orcompletely overlapped. In an embodiment, as shown in FIG. 2 , thepiezoelectric component 120 and the display panel 10 may be spaced fromeach other by a distance D. In other words, the piezoelectric component120 may not contact with the display panel 10. The distance D can be themaximum distance between the piezoelectric component 120 and the displaypanel 10 in a thickness direction X of the electronic device 1. Thedistance D is, for instance, in the range of 0.1 millimeter (mm) to 5centimeters (cm), i.e., 0.1 mm≤distance D≤5 cm, however the distance Dis not construed as a limitation in the disclosure.

In an embodiment, as shown in FIG. 2 , the piezoelectric component 120may include a piezoelectric portion (such as a piezoelectric portion1200 and a piezoelectric portion 1201) and a conductive portion 1202.The piezoelectric portion 1200, the piezoelectric portion 1201, and theconductive portion 1202 are overlapped, and the piezoelectric portion1200 and the piezoelectric portion 1201 may be located on opposite sidesof the conductive portion 1202, respectively. In another embodiment, thepiezoelectric portion 1200 and the piezoelyectric portion 1201 may alsobe integrated, however it should not be construed as a limitation in thedisclosure. A material of the piezoelectric portion 1200 and/or thepiezoelectric portion 1201 may include Pb(ZrTi)O₃ (PZT), polyvinylidenedifluoride (PVDF), other suitable piezoelectric materials, or acombination of at least two of the above. A material of the conductiveportion 1202 may include silver, copper, gold, aluminum, nickel, lead,tin, iron, an alloy of the above metals, and/or a combination of atleast two of the above materials. In some embodiments, the material ofthe conductive portion 1202 may also be replaced by other suitable rigidmaterials. A material of connection component 121 may include aconductive material or another suitable material. The conductivematerial may be selected from the material of the aforesaid material ofthe conductive portion 1202, which should however not be construed as alimitation in the disclosure. In an embodiment, the connection component121 and the conductive portion 1202 may be made of the same material,which should however not be construed as a limitation in the disclosure.In an embodiment, the conductive portion 1202 may be formed by a portionof the connection component 121 overlapping the display panel 10, whichshould however not be construed as a limitation in the disclosure. In anembodiment, the material of the connection component 121 can also bereplaced by a buffer material. It should be mentioned that the number ofelements in the piezoelectric component 120 and the relativeconfiguration relationship between the elements may be changed as needand should not be limited to what is shown in FIG. 2 . For instance, thenumber of the piezoelectric portions in the piezoelectric component 120may be one or more than two, which should however not be construed as alimitation in the disclosure.

The sound broadcasting element 12 may be connected to the protectionlayer 11 through the connection component 121. The conductive portion1202 in the piezoelectric component 120 supplies electrical power to thepiezoelectric portion (e.g., the piezoelectric portion 1200 and thepiezoelectric portion 1201), and the piezoelectric portion may convertthe electrical power into mechanical power (vibration waves) andconducts the vibration waves to the protection layer 11. In anembodiment, the vibration frequency of the piezoelectric portion maybein a range from 20 Hz to 20 kHz (20 Hz≤the vibration frequency≤20 kHz),such as 250 Hz, 400 Hz, 500 Hz, 800 Hz, 1000 Hz, or 2000 Hz, whichshould however not be construed as a limitation in the disclosure. Inother embodiments, the vibration frequency may also be in the ultrasonicband.

With the setting of the sound broadcasting element 12, the electronicdevice 1 may not need to arrange any sound hole in a display region R,so as to increase the screen-to-body ratio or achieve full-screendisplay. In an embodiment, the sound broadcasting element 12 may alsoprovide a tactile feedback function (e.g., the sound broadcastingelement 12 may vibrate while the electronic device 1 is being pressedlong), which should however not be construed as a limitation in thedisclosure.

The way to set the piezoelectric portion (such as the piezoelectricportion 1200 or the piezoelectric portion 1201) in the soundbroadcasting element 12, the top-view shape of the piezoelectricportion, and the area of the piezoelectric portion can be designedaccording to requirements (such as tone, the sense of vibration, or thelike). The top-view shape refers to the shape observed in the thicknessdirection X of the electronic device 1.

For instance, as shown in FIG. 1 , the piezoelectric portion (such asthe piezoelectric portion 1200 or the piezoelectric portion 1201) mayhave at least one opening O. A width W1 of the opening O may be greaterthan a width W2 of the opening O, which should however not be construedas a limitation in the disclosure. The width W1 may be the maximum widthof the opening O spaced from the connection component 121, which shouldhowever not be construed as a limitation in the disclosure. The width W2may be the minimum width of the opening O adjacent to the connectioncomponent 121, which should however not be construed as a limitation inthe disclosure. The piezoelectric portion is adjacent to a plurality ofincluded angles (e.g., an included angle θ1, an included angle θ2, anincluded angle θ3, and an included angle θ4) between a plurality ofsides of the at least one opening O (e.g., a first side E1, a secondside E2, a third side E3, a fourth side E4, and a fifth side E5), andthe included angles may be in a range of 95-135 degrees, respectively,for instance, 100 degrees, 105 degrees, 110 degrees, or 120 degrees,i.e., 95 degrees≤θ1≤135°, 95°≤θ2≤135°, 95°≤θ3≤135° and 95°23 θ4≤135°.The included angles θ1-θ4 may be the same, at least partially identical(at least partially different), or different. In addition, any includedangle can be rounded rather than sharp, however it should not beconstrued as a limitation in the disclosure.

By properly designing the position, the dimension, and/or the shape ofthe opening, the piezoelectric portion may effectively transmit thevibration waves to the protection layer 11 when the piezoelectricportion vibrates at low frequencies (e.g., 250 Hz to 650 Hz).

In FIG. 1 , the opening O of the piezoelectric portion (such as thepiezoelectric portion 1200 or the piezoelectric portion 1201) may face acentral area of the electronic device 1. The stability of thepiezoelectric component 120 may be increased by connecting theconnection portion 121 to a wider part of the piezoelectric portion(such as the sixth edge E6 of the piezoelectric portion), but theconfiguration of the piezoelectric portion (such as the piezoelectricportion 1200 or the piezoelectric portion 1201) is not thereto. In anembodiment, the piezoelectric portion may be turned 180 degrees (or maybe set at any angle), so that the opening O faces the outside of theelectronic device 1. In an embodiment, the piezoelectric portion mayhave a plurality of openings O. In another embodiment, the piezoelectricportion may have no opening O. In an embodiment, the top-view shape ofthe piezoelectric portion may be a rectangle, a triangle, a circle, apolygon, any other suitable shape, or a combination of the above, whichshould however not be construed as a limitation in the disclosure.

In response to different demands, electronic device 1 may furtherinclude other elements and/or film layers. For instance, the electronicdevice 1 may further include a touch layer (not shown). The touch layermay include an out-cell touch structure, an in-cell touch (e.g., anon-cell touch or an in-cell touch) structure, or a hybrid touchstructure, which should however not be construed as a limitation in thedisclosure. The touch structure may include a two-dimensional (2D) touchstructure or a three-dimensional (3D) touch structure.

In this embodiment, in addition to the sound broadcasting element 12,the electronic device 1 may further include a sound broadcasting element13. For instance, the sound broadcasting element 12 may be used, forexample, as an earpiece, and the sound broadcasting element 13 may beused as a speaker, for instance, which should however not be construedas limitations in the disclosure. FIG. 3 is a schematic cross-sectionalview taken along a sectional line II-II′ in FIG. 1 . With reference toFIG. 3 , in an embodiment, the sound broadcasting element 13 may bedisposed on a back surface S10 of the display panel 10, and the soundbroadcasting element 13 may include a piezoelectric component 130 and aconnection component 131. The connection component 131 may be connectedbetween the piezoelectric component 130 and the display panel 10. Theconnection component 131 may contact the back surface S10 of the displaypanel 10, and a cavity GA may exist between the piezoelectric component130 and the display panel 10. In other words, the piezoelectriccomponent 130 may not contact with the display panel 10.

In an embodiment, as shown in FIG. 3 , the piezoelectric component 130may include a piezoelectric portion (such as a piezoelectric portion1300 and a piezoelectric portion 1301) and a conductive portion 1302.The piezoelectric portion 1300, the piezoelectric portion 1301, and theconductive portion 1302 may be overlapped. In the disclosure, the stateof “overlapping” includes “complete overlapping” and “partialoverlapping” unless otherwise stated. The piezoelectric portions 1300and 1301 may, for instance, be disposed on two opposite sides of theconductive portion 1302, respectively. Materials of the piezoelectricportion and the conductive portion may be referred to as those describedabove and will not be repeated hereinafter. In addition, the number ofthe piezoelectric portions in the piezoelectric component 130 and therelative configuration relationship between the piezoelectric portionand the conductive portion 1302 may be changed as need and should not belimited to what is shown in FIG. 3 . For instance, the number of thepiezoelectric portions in the piezoelectric component 130 may be one orgreater than two. In an embodiment, a material of the connectioncomponent 131 may include a buffer material. The buffer material mayinclude a porous material, a soft material, another suitable material,or a combination of at least two of the above materials, however itshould not be construed as a limitation in the disclosure. For instance,the buffer material may include silicone, latex, Styrofoam, anothersuitable materials, or a combination thereof.

The sound broadcasting element 13 may be connected to the display panel10 through the connection component 131. For instance, the connectioncomponent 131 may contact the backlight module in the electronic device1, however it should not be construed as a limitation in the disclosure.The conductive portion 1302 may supply electrical power to thepiezoelectric portion (such as the piezoelectric portion 1300 and thepiezoelectric portion 1301), and the piezoelectric portion may convertthe electrical power into the mechanical power (vibration waves) andconduct the vibration waves to the display panel 10 and/or theprotection layer 11.

In FIG. 1 , the top-view shape of the piezoelectric portion (such as thepiezoelectric portion 1300 or the piezoelectric portion 1301) is arectangle, which should however not be construed as a limitation in thedisclosure. In an embodiment, the top-view shape of the piezoelectricportion may include a rectangle, a triangle, a circle, a polygon,another suitable shape, or a combination of the above, which shouldhowever not be construed as a limitation in the disclosure. In someembodiments, the electronic device 1 may further include a casing 15 (asshown in FIG. 3 ), and there may be a relatively large cavity betweenthe casing 15 and the protection layer 11 (or between the casing 15 andthe display panel 10), which is conducive to effective transmission ofthe vibration waves to the display panel 10 and the protection layer 11when the piezoelectric portion vibrates at low frequencies (such as 250Hz to 650 Hz). In an embodiment, the electronic device 1 may not includethe sound broadcasting element 13.

FIG. 4A to FIG. 4C are schematic top views of various sound broadcastingelements applicable to the electronic device (such as the electronicdevice 1 of FIG. 1 ) provided herein. For instance, the soundbroadcasting element 12 and/or the sound broadcasting element 13 in FIG.1 may be replaced by any one or more of the sound broadcasting elements12X-12Z shown in FIG. 4A-4C, which should however not be construed as alimitation in the disclosure.

In FIG. 4A, the main difference between the sound broadcasting element12X and the sound broadcasting element 12 in FIG. 1 is that thepiezoelectric portion of the sound broadcasting element 12X (such as apiezoelectric portion 1200X or a piezoelectric portion 1201X) hasanother opening OX in addition to the opening O. The width W1 of theopening O may be greater than the width W2 of the opening O, whichshould however not be construed as a limitation in the disclosure. Awidth W3 of the opening OX may be greater than a width W4 of the openingOX, which should however not be construed as a limitation in thedisclosure. The width W1 of the opening O and the width W3 of theopening OX may be the maximum widths of the opening O and the opening OXadjacent to an edge of the piezoelectric portion, respectively, whichshould however not be construed as a limitation in the disclosure. Thewidth W2 of the opening O and the width W4 of the opening OX may be theminimum widths of the opening O and the opening OX adjacent to thecentral region of the piezoelectric portion, respectively, which shouldhowever not be construed as a limitation in the disclosure. The width W1and the width W3 may be the same or different, and the width W2 and thewidth W4 may be the same or different. The piezoelectric portion isadjacent to a plurality of included angles (e.g., the included anglesθ1-θ8) between a plurality of sides of the openings O and OX (e.g., thefirst side E1, the second side E2, the third side E3, the fourth sideE4, the fifth side E5, a seventh side E7, an eighth side E8, a ninthside E9, a tenth side E10, and an eleventh side E11), and the includedangles may be in a range of 95-135 degrees, respectively, for instance,105 degrees, 110 degrees, or 120 degrees, i.e., 95 degrees≤θ1 (or θ2,θ3, θ4, θ5, θ6, θ7, θ8)≤135°. The included angles θ1-θ8 may be all thesame, at least partially identical (at least partially different), ordifferent. In addition, any included angle may be rounded rather thansharp, which should however not be construed as a limitation in thedisclosure.

In FIG. 4B, the main difference between the sound broadcasting element12Y and the sound broadcasting element 12 in FIG. 1 is that the top-viewshape of a piezoelectric portion of the sound broadcasting element 12Y(such as a piezoelectric portion 1200Y or a piezoelectric portion 1201Y)is a neck pillow shape, and the piezoelectric portion has an opening OYshaped as a letter U. However, the detailed structure of the soundbroadcasting element 12Y and the shape of the opening OY may be changedas needed, which should not be construed as a limitation in thedisclosure.

In FIG. 4C, the main difference between the sound broadcasting element12Z and the sound broadcasting element 12 in FIG. 1 is that the top-viewshape of the piezoelectric portion of the sound broadcasting element 12Z(such as a piezoelectric portion 1200Z or a piezoelectric portion 1201Z)is substantially circular, and the piezoelectric portion may not haveany opening. In other embodiments, the top-view shape of thepiezoelectric portion of the sound broadcasting element 12Z may includeat least one arc.

In other embodiments, by appropriately designing the dimension, theshape, and/or the position of the opening of the piezoelectric portion,the piezoelectric portion may effectively transmit the vibration wavesto the protection layer when the piezoelectric portion vibrates atdifferent frequencies. Therefore, FIG. 1 and FIG. 4A to FIG. 4C aremerely examples showing the implementations of the piezoelectricportion, which should however not be construed as limitations in thedisclosure.

FIG. 5 to FIG. 12 are schematic cross-sectional views of electronicdevices 1A-1H according to several embodiments of the disclosure. Pleaserefer to FIG. 5 . The main differences between an electronic device 1Aand the electronic device 1 in FIG. 2 are described as follows. In theelectronic device 1A, a sound broadcasting element 12A may contact aside surface S11S of the protection layer 11 and a side surface S10S ofthe display panel 10. Further, the sound broadcasting element 12A mayinclude the afore-mentioned piezoelectric component 120 and a connectioncomponent 121A. The connection component 121A may contact the sidesurface S11S of the protection layer 11 and/or the side surface S10S ofthe display panel 10. That is, the connection component 121A may befixed by the side surface S11S of the protection layer 11 and the sidesurface S10S of the display panel 10. In some embodiments, theconnection component 121A may contact the side surface S10S of thedisplay panel 10 but the connection component 121A may not contact theside surface S11S of the protection layer 11; for instance, theconnection component 121A may be disposed on the inner surface S11,which should however not be construed as a limitation in the disclosure.

Through the design of the sound broadcasting element 12A in contact withthe side surface S11S of the protection layer 11 and the side surfaceS10S of the display panel 10, the space for setting the soundbroadcasting element 12A may be reduced and may be conducive toachieving a narrow border design. In an embodiment, as shown in FIG. 5 ,the connection component 121A may also include a contact member 1210contacting the back surface S10 of the display panel 10 to increase thecontact area between the connection component 121A and the display panel10. In an embodiment, the electronic device 1A may not include theprotection layer 11.

Please refer to FIG. 6 . The main differences between an electronicdevice 1B and the electronic device 1 in FIG. 2 are described asfollows. In the electronic device 1B, a sound broadcasting element 12Bmay contact the back surface S10 of the display panel 10. Further, thesound broadcasting element 12B may include the above-mentionedpiezoelectric component 120 and a connection component 121B. Theconnection component 121B may contact the back surface S10 of thedisplay panel 10. That is, the connection component 121B may be fixed bythe back surface S10 of the display panel 10. For instance, theconnection component 121B may be disposed on the backlight module of theelectronic device 1B, which should however not be construed as alimitation in the disclosure.

By setting the sound broadcasting element 12B on the back surface S10 ofthe display panel 10, it is possible to achieve the narrow borderdesign. In an embodiment, the electronic device 1B may not include theprotection layer 11, which should however not be construed as alimitation in the disclosure.

Please refer to FIG. 7 . The main differences between an electronicdevice 1C and the electronic device 1B in FIG. 6 are described asfollows. The electronic device 1C also includes a medium plate 14. Thedisplay panel 10 may be disposed in the accommodating space formed bythe protection layer 11 and the medium plate 14, and the medium plate 14may contact the inner surface S11 of the protection layer 11, the sidesurface S10S of the display panel 10, and/or the back surface S10 of thedisplay panel 10. In addition, the sound broadcasting element 12B maycontact an outer surface S14 of the medium plate 14. To be specific, theconnection component 121B of the sound broadcasting element 12B maycontact the outer surface S14 of the medium plate 14; in other words,the connection component 121B may be fixed by the outer surface S14 ofthe medium plate 14. In an embodiment, the electronic device 1C may notinclude the protection layer 11. In another embodiment, the electronicdevice 1C may further include the casing 15 as shown in FIG. 3 .

Please refer to FIG. 8 . The main differences between an electronicdevice 1D and the electronic device 1B in FIG. 6 are described asfollows. The electronic device 1D may be a tiled electronic deviceformed by tiling a plurality of (e.g., two) the electronic devices 1Bdepicted in FIG. 6 . In an embodiment, the electronic device 1D may be atiled electronic device formed by tiling a plurality of the electronicdevices 1 depicted in FIG. 2 , a plurality of the electronic devices 1Adepicted in FIG. 5 , a plurality of the electronic devices 1C depictedin FIG. 7 , or a plurality of the electronic devices provided in theabove embodiments. In an embodiment, the electronic device 1D may notinclude the protection layer 11.

Please refer to FIG. 9 . The main differences between an electronicdevice 1E and the electronic device 1 in FIG. 2 are described asfollows. In the electronic device 1E, a piezoelectric component 120E anda connection component 121E in a sound broadcasting element 12E may belocated on a side of the display panel 10, and there may be the air gapG between the side of the display panel 10 and the sound broadcastingelement 12E as a whole (including the piezoelectric component 120E andthe connection component 121E). In an embodiment, a material of theconnection component 121E may include a conductive material or a buffermaterial. In an embodiment, the electronic device 1E may further includea casing (not shown), and there may be a relatively large cavity betweenthe casing and the protection layer 11 (or between the casing and thedisplay panel 10), and may be conducive to effective transmission of thevibration waves to the display panel 10 and the protection layer 11 whenthe piezoelectric portion vibrates at low frequencies (such as 250 Hz to650 Hz).

Please refer to FIG. 10 . The main differences between an electronicdevice 1F and the electronic device 1E in FIG. 9 are described asfollows. In the electronic device 1F, a sound broadcasting element 12Fas a whole (including a piezoelectric component 120F and a connectioncomponent 121F) may contact the side surface S11S of the protectionlayer 11 and the side surface S10S of the display panel 10. In anembodiment, the electronic device 1F may not include the protectionlayer 11. In an embodiment, the electronic device 1F may further includea casing (not shown). In an embodiment, the sound broadcasting element12F is disposed on the inner surface S11 of the protection layer 11 andcontacts the side surface S10S of the display panel 10.

Please refer to FIG. 11 . The main differences between an electronicdevice 1G and the electronic device 1 in FIG. 3 are described asfollows. The electronic device 1G also includes the medium plate 14. Therelative configuration relationship between the medium plate 14 andother elements may be referred to as those illustrated in FIG. 7 andwill not be repeated hereinafter. The sound broadcasting element 13 maybe in contact with the outer surface S14 of the medium plate 14. To bemore specific, the connection component 131 of the sound broadcastingelement 13 may contact the outer surface S14 of the medium plate 14.That is, the connection component 131 may be connected by the outersurface S14 of the medium plate 14. In an embodiment, the electronicdevice 1G may not include the protection layer 11. In an embodiment, theelectronic device 1G may further include a casing (not shown).

Please refer to FIG. 12 . The main differences between an electronicdevice 1H and the electronic device 1 in FIG. 3 are described asfollows. The electronic device 1H is a tiled electronic device formed bytiling a plurality of (e.g., two) the electronic devices 1 depicted inFIG. 3 . In an embodiment, the electronic device 1H may be a tiledelectronic device formed by tiling a plurality of the electronic devices1E depicted in FIG. 9 , a plurality of the electronic devices 1Fdepicted in FIG. 10 , a plurality of the electronic devices 1G depictedin FIG. 11 , or a plurality of the electronic devices provided in theabove embodiments. In an embodiment, the electronic device 1H may notinclude the protection layer 11.

In the embodiments shown above and illustrated in FIG. 5 to FIG. 12 ,the sound broadcasting element may serve as an earpiece or a speaker,one or more sound broadcasting elements may be disposed in one singleelectronic device, and the number of the same sound broadcasting elementin one single electronic device may be one or more.

To sum up, in one or more embodiments of the disclosure, with thesetting of the sound broadcasting element, it is not necessary to designthe sound hole in the display region of the electronic device, therebyincreasing the screen-to-body ratio or achieving full-screen display. Inan embodiment, the sound broadcasting element may also provide a tactilefeedback function. In an embodiment, the configuration, the top-viewshape, and the area of the piezoelectric portion in the soundbroadcasting element can be designed, or the electronic device mayfurther include the casing, so that the piezoelectric portion mayeffectively transmit the vibration waves to the protection layer whilethe piezoelectric portion vibrates at low frequencies. In an embodiment,the position of the sound broadcasting element may be designed toachieve the narrow border design.

The above embodiments merely serve to explain but not restrict thetechnical schemes provided in the disclosure. Although detaileddescriptions are provided in detail with reference to the aboveembodiments, people having ordinary skill in the pertinent art shouldunderstand that the technical schemes described in the foregoingembodiments may be modified, or some or all of the technical featuresabove may be equivalently replaced; these modifications or replacementmay be provided without departing from the scope provided in one or moreembodiments in the disclosure.

Although the embodiments and the advantages have been disclosed above,it should be understood that any person with ordinary skill in thepertinent art may make changes, substitutions, and refinements withoutdeparting from the spirit and scope of the disclosure. In addition, thescope of protection provided in the disclosure is not limited to theprocesses, machine, fabrications, compositions of substances, devices,methods, and steps provided in one or more embodiments described herein.People having ordinary skill in the pertinent art are able to understandthe processes, machine, fabrications, compositions of substances,devices, methods, and steps provided in one or more embodimentsdeveloped at present or in the future, as long as the same function canbe performed or the same result can be achieved according to theembodiments described in the disclosure. Accordingly, the scope ofprotection of the disclosure includes the above-mentioned processes,machine, fabrications, compositions of substances, devices, methods, andsteps. In addition, each claim constitutes an individual embodiment, andthe scope of the disclosure also includes the combination of the variousclaims and embodiments. The scope of protection of the disclosure issubject to what is defined in the appended claims. Any embodiment orclaim of the disclosure is not required to achieve all the objectives,advantages, and features disclosed herein.

What is claimed is:
 1. An electronic device comprising: a protectionlayer having an inner surface and a side surface directly connected tothe inner surface; a display panel disposed on the inner surface of theprotection layer and having a back surface and a side surface directlyconnected to the back surface; and a sound broadcasting element locatedadjacent to the side surface of the display panel, and comprises apiezoelectric component and a connection component.
 2. The electronicdevice as claimed in claim 1, wherein the sound broadcasting elementcontacts the side surface of the protection layer and the side surfaceof the display panel.
 3. The electronic device as claimed in claim 1,wherein the connection component contacts the side surface of theprotection layer.
 4. The electronic device as claimed in claim 3,wherein a length of the connection component along a normal direction ofthe inner surface of the protection layer is less than a thickness ofthe protection layer.
 5. The electronic device as claimed in claim 1,wherein the piezoelectric component at least contacts the side surfaceof the display panel.